Valve-spring lifter



y 1927' R. E. BROWN VALVE SPRING LIFTER I Filed Aug. 19. 1926' J a. t i 3 f x Inventor fiEBmwzz,

Patented July 26, 1927.

S ATES oFFIV-CEQ RYNEER E. shown, or HOLDENVILLE, oKLAH MA, .ASSIGNQLR. orfoNE nALF, so i ALBERT STANLEY BAILEY, 10F JH QLDENVILLE, OKLAHOMA.

VALVE-SPRING:

n i c uonmea Lngust 19,1926. "Serial mgr-30,283.,

This invention relates to an improved device, whichis commonly knownin the art as a valve springl-ifter, thesa'me being 'in-the' formof-a novel tool for lifting a coiled spring such as is associated with a common form of internal combustion engine valve, the construction of the tool being such that the spring can be compressed and lifted to permit removal of the valve stem pin, whereby to facilitate disassembling or application of the engine valve. I am well aware of the fact that numerous tools have been patentedand marketed to accomplish this result, but it is believed that the tool shown and specifically described in this application is an improvement upon prior devices of this kind, the same being composed of two parts, thus making it exceptionally simple in construction, and making it advantageous from the 2 standpoint of the manufacturer, owing to the increased quantity of production and output, the ease of assembling, and compactness and convenience of parts.

The details and their association will become apparent from the following description and drawing:

In the accompanying drawing, forming a part of this application, and in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a side view, with a portion broken away and shown in section, of a tool constructed in accordance with this invention, showing the manner in which it is used.

Figure 2 is a horizontal section, taken approximately upon the plane of the line 22 of Figure 1, and

Figure 3 is an end elevation of the valve spring engaging claw.

Referring to the drawings in detail, it will be seen that the reference character 1 designates a portion of an internal combustion engine cylinder block having valve openings and seats for cooperation with the usual valve. The valve here shown is of the mushroom type, and the head 2 is shown resting upon the valve seat and the stem 3 is shown extending downwardly through the usual guides. Surrounding the lower central portion of the stem is the coil spring 4 which has its lower end seated in a cup 5. Beneath this cup is a removable retaining pin 6. All of these parts are of the usual construction and constitute no part of the invention, but

serve to show the type of engine with which the tool may be used with facility.

The improved tool comprises a suspension member 7, which is here shown in 'the form of'a flatmetal bar, bent'into Cshaped formation. The upper end terminates 'in a point 8 which is located at a point spaced beyond the lower downturned end 9. The

point 8 is adapted to rest on the center of better in Figure 3. With this arrangement,

the keeper 13 partially surrounds the coil spring and disposes the arm 14 on diametrically opposite sides of the spring, and locates the inturned extremity 15 beneath the valve spring cup 5. Connected to the opposite end of the part 10 is a cylindrical portion which is bent upwardly as at 16, and bent again as at 17, to terminate in a hand grip or handle 18. The bend 17 is located about the vertical center of the C- shaped suspension member 7. The lower end portion of the handle however is bent on a line similar to that of the adjacent portion of the suspension member. These bends are particularly important in that they dispose the point of pressure at an elevation with respect to the suspension member to render the leverage comparatively powerful. Thus, a slight downward push upon the handle will serve to lift a comparatively sturdy coil spring with little or no exertion.

In practice, the pointed end 8 of the C- shaped member 7 is engaged with the head of the valve thus locating the lower end portion of this member at a point spaced away from the valve mechanism. This locates the lifting lever at a place to permit the claw to be readily engaged with the valve spring cup. Obviously, by forcing downwardly upon the handle 8, the lever will be rocked in a manner to lift the spring up and to permit ready removal of the valve stem pin 6. A feature in this arrangement is that the device may be located in position Without regard to the exactness in location usually required in tools of this kind. In fact, the device may be swung from one side to the other to swing the handle out ofthe Way of interfering objects,'thus' rendering the tool exceptionally easy to manipulate.

It is believed that by considering the de scription in connection with the drawin s,

persons familiar With tools of this kind wlll be, able I to obtain a clear understanding of the same. Therefore, a more lengthy de: scription is thought unnecessary.

- =Ic1aim: m -A valve spring lifter comprising a substantially C-shaped suspension member having a pointed end at its top adapted to rest ity of said suspension member, said lever having means on its outer end for engaging a valve sprlng cup, the opposite end of the lever being directed upwardly, and terminating on a plane opposite the central por tion of said C-shaped suspension member.

a In testimony whereof I afiix my signature,

BYNEER BROWN. 

